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PROFI-8155/8255 Remote I/O Unit User Manual (Version 1.01, Sep/2013) -------------1

PROFI-8155/PROFI-8255

User Manual


Warranty All products manufactured by ICP DAS are warranted against

defective materials for a period of one year from the date of delivery to the original purchaser.

Warning

ICP DAS assumes no liability for damages consequent to the use of this product. ICP DAS reserves the right to change this manual at any time without notice. The information furnished by ICP DAS is believed to be accurate and reliable. However, no responsibility is assumed by ICP DAS for its use, or for any infringements of patents or other rights of third parties resulting from its use.

Copyright

Copyright 2008 by ICP DAS Co., LTD. All rights reserved worldwide.

Trademark

The names used for identification only may be registered trademarks of their respective companies.

List of Revision

Date Author Version Revision 2008/10 Jeff Ma 1.0 Release 2013/09/09 Ryan Lin 1.01 Suppoer I-87061W


Table of Content

1. ..............................................................................................................................4 Introduction

1.1. ....................................................................................................................4 Overview

1.2. ..............................................................................................................4 Applications

1.3. .....................................................................................................................5 Features

1.4. ...........................................................................................................6 Specifications

1.5. .....................................................................................................7 Modules Support

2. ...................................................................................................................................8 Hardware

2.1. ...............................................................8 PROFI-8155/8255 Hardware Structure

2.2. .................................................................................................................9 Bus Wiring

2.3. ..............................................10 PROFIBUS Cable and Transmission Distance

2.4. ...................................................................................................... 11 Status Indicator

2.5. ................................................................................................................13 Connector

2.6. .........................................................................................14 Watchdog mechanism

2.7. .........................................................................................................15 Node Address

2.8. .................................................................................................17 Baud rate support

3. .........................................................................................................18 PROFIBUS DP System

3.1. ..........................................................................18 The flow chart of the DP-slave

3.2. ..............................................................19 Power On / Reset – Rotary switch

3.3. ..........................................................................................20 Parameterization Data

System parameters.......................................................................................................20

Module parameters for I-8K module.........................................................................20

Module Parameter for i-87K module: .......................................................................21

Module Parameter for Output modules: .................................................................24

3.4. ................................................................................................26 Wait Configuration

Configuration Data........................................................................................................26

3.5. .......................................................................................................30 Data Exchange

Numeric Representation .............................................................................................30

Byte Order and Data Address ....................................................................................43

3.6. ...............................................................................53 Diagnostic Message Report

3.7. ..........................................................................................56 DP-V1 Acyclic Service

3.8. ..........................................................61 Establish connection with PROFI-8X55

3.9. .....................................................................62 Telegram cycle of data exchange

4. .......................................................................64 PROFI-8X55 Guideline (Based on Step 7)

4.1. ........................................................................................................64 Preprocessing

5. ...................................................................................................................................68 GSD File


1. Introduction

1.1. Overview PROFIBUS is an open, digital communication system with a wide range of applications, particularly in the fields of factory automation and process automation. PROFIBUS is suitable for both fast, time-critical applications and complex communication tasks. PROFIBUS-DP is a famous protocol that enables simple, fast, cyclic and deterministic process data exchange between Master and assigned Slave.

The PROFI-8155/8255 Remote I/O Unit is specially designed for the slave device of PROFIBUS DP protocol. It supports up to 1/2 I/O slots for ICP DAS i-8k series, i-87k Low Profile series and i-87k High Profiles series I/O modules. In addition, we also provide the hot-swap function for i-87k High Profiles series I/O modules. To setup PROFIBUS network, users can choose and configure I/O modules by using the GSD file without any other setting tools. 1.2. Applications Industrial Automation Factory Automation Process Automation Etc…


1.3. Features Protocol & Hierarchy DP-V0 & DP-V1 Slave Supports Transmission Rate (Kbps)

9.6, 19.2, 45.45, 93.75, 187.5, 500, 1500, 3000, 6000, 12000

Transmission Rate Setting detected automatically Address Setting 0~126 set by Rotary Switches

SSA-telegram set by DP-Master(Class 2)

Indicators PWR, ERR, and RUN LEDs I/O modules Configuration Configured by GSD file Supports I/O modules hot-swap I-87K High Profile series Network Isolation Protection High Speed iCoupler DC Isolation Protection 3000VDC on PROFIBUS side 4KV ESD Protection Contact for each terminal Number of Channel of Diag. 32 Device-Related Diag. Type Offline Detection


1.4. Specifications Model PROFI-8155 PROFI-8255

CPU 80186, 80MHz Flash 512K Bytes SRAM 512K Bytes EEPROM 2K Bytes Watch Dog Timer CPU Built-in Com1 RS-232(F/W update port at JP1) PROFIBUS Interface 9-pin D-Sub(Female) PROFIBUS Controller Siemens SPC3 PROFIBUS Transceiver ADI ADM2486 iCoupler Isolated

Transceiver Transmission Rate Up to 12Mbps I/O Expansion Slot 1 Slots 2 Slots Power Requirement 10V ~ 30V Power Supply 8W Power Consumption 3W Operating Temperature

-25 ~ +75

Storage Temperature -30 ~ +85

Humidity 5% ~ 95% No-Condensing Dimensions 65x115x90 mm 95x115x90 mm


1.5. Modules Support Type Module Name Type Module Name

DI

i-8040 / i-8051 / i-8052 / i-8053 / i-8058 i-87040 / i-87051 / i-87052 / i-87053 / i-87058 i-87040W / i-87046W / i-87051W / i-87052W / i-87053W / i-87053W-A5 / i-87058W/ i-87059W

AI

i-8017H / i-8017HS i-87013 / i-87017 / i-87018 i-87013W / i-87015 /i-87015P/ i-87017W / i-87017W-A5 / i-87017R / i-87017RC / i-87018R / i-87018Z / i-87019R

DO

i-8037 / i-8041 / i-8056 / i-8057 / i-8060 / i-8064 / i-8065 / i-8066 / i-8068 / i-8069 i-87041 / i-87057 / i-87064 / i-87065 / i-87066 / i-87068 / i-87069 i-87041W / i-87057W / i-87064W / i-87065W / i-87066W / i-87068W / i-87069W

AO

i-8024 i-87022 / i-87024 / i-87026 i-87024W / i-87028CW

Counter / Frequency

i-8080 i-87082 i-87082W DI/O

i-8042 / i-8050 / i-8054 / i-8055 / i-8063 / i-8077 i-87054 / i-87055 / i-87063 i-87054W / i-87055W / i-87061W / i-87063W

Motion i-8093W


2. Hardware

2.1. PROFI-8155/8255 Hardware Structure


2.2. Bus Wiring In order to minimize the reflection effect of the signal transmission, PROFIBUS device has to fit with an active terminal resistor at both first node and last node, as shown below

However, the number of station in PROFIBUS network is also restricted. According to PROFIBUS specification, it is up to 32 stations connected in a PROFIBUS segment. If more than 32 stations are connected, the PROFIBUS repeater must be used to link the individual bus segments.


2.3. PROFIBUS Cable and Transmission Distance The PROFIBUS cable with following properties has different transmission distance with respect to different transmission rate, shown in the following table

1. Impedance :135~165Ω 2. Capacity : lower than 30 pF/m 3. Loop resistance : lower than 110Ω/Km 4. Wire diameter : larger than 0.65mm 5. Core cross-section : larger than 0.34mm2

Transmission Rate(Kbps) Transmission Distance per Segment (meter)

9.6, 19.2, 45.45, 93.75 1200 187.5 1000 500 400

1500 200 3000, 6000, 12000 100


2.4. Status Indicator

PROFI-8x55 provide three types of status indicators, they are PWR LED (yellow), ERR LED (red) and RUN LED (green). When the power is supplied to PROFI-8x55, PWR LED will turn on; Before PROFI-8x55 gets into the data exchange state, ERR LED will turn on or flash; If CHK_CFG procedure is finished, RUN LED will turn on and ERR LED will turn off. The table below explains the relationship between linking status and recommend solutions.

Status Indicator Meaning Recommend solution ERR ON & RUN OFF

PROFI-8x55 is offline with no valid baud rate

(offline mode*)

Check the address setting of PROFI-8x55 and DP-master.

ERR Flash (10Hz)

PROFI-8x55 detects baud rate, but is still offline.(stop mode*)

Check the DP-Master is ready to communicate with

PROFI-8x55. ERR Flash

(2Hz) PROFI-8x55 Prm is

Fault.(Note 1) Check the setting of

PROFI-8x55 in the master interface and make sure of the

consistency. ERR Flash

(1Hz) PROFI-8x55’s Cfg is

fault(Note 2) Same as above

ERR ON & RUN ON

PROFI-8x55 is in clear mode*.

Sets the DP-Master from clear mode to operation mode

ERR OFF & RUN ON

PROFI-8x55 is in operation mode*.

PWR & ERR Flash together(1Hz)

PROFI-8x55 detect module(s) offline

Find the reason of the fault of corresponding module.

PWR & ERR Flash Interlace(2Hz)

Diag Exist (Diag. Msg. Request)

Check the Input/Output value that if exceed/under the limit


Note 1: “Prm Fault” is the abbreviation of “Parameter Fault”; It means that the number of parameter data which receive from DP-Master is not consistency with DP-Slave (PROFI-8x55), and it could due to the difference between module installation and master setting. Note 2:“Cfg Fault” is the abbreviation of “Configuration Fault”, it means that the number of configuration data which receive from DP-Master is not consistency with DP-Slave (PROFI-8x55), and it could due to the wrong order of installation. Note *: there are four kinds of state in PROFIBUS DP Master.

1. Offline mode: Master not active on the bus. 2. Stop mode: Master only transmit token on the bus, and PROFIBUS

DP is not active. 3. Clear mode: DP Master active, but all output are zero or set to

fail-safe state. 4. Operate mode: DP Master full active.

Note: Diag. Exist mean that PROFI-8x55 detected the I/O value (analog signal) of the module exceed or under the limitation of corresponding module, or detected the line-broken of the temperature-sensor that should connect to the module.


2.5. Connector The connector of PROFI-8x55 is shown below

Pin No. Signal Meaning

3 B-Line Receive/Transmit data - plus 4 CNTR-P Repeater control signal, RTS signal 5 GND Power ground of bias terminator 6 VP Power 5 volt of bias terminator 8 A-Line Receive/Transmit data - minus

Note: The connector of PROFI-8x55 has no terminators; users must use the cable connector that contain bias-terminator inside. The power of the bias-terminator provide by PROFI-8x55 or other end-device.


2.6. Watchdog mechanism PROFI-8x55 has a built-in watchdog timer to monitor the linking status

with Master. In order to ensure an error-free connection, watchdog mechanism divides into three stages.

In the first stage, watchdog detects the start delimiter whether valid or not after the status of power supplied or system reset. If no SD1 telegram, SD2 telegram, or SD3 telegram are received completely, PROFI-8x55 will changes the baud rate and continues detecting the correct baud rate. This stage is called “Baud Search”.

If the watchdog has detected a valid SD telegram, it goes into the second stage. In this stage, the watchdog monitors the integrity of the telegram. When watchdog timer is expired and PROFI-8x55 doesn’t receive the complete telegram, PROFI-8x55 will go to “Baud Search” state. This stage is called “Baud Control”.

After PROFI-8x55 finished initializing, PROFI-8x55 waits for receiving the Set_Prm telegram. If PROFI-8x55 receives the Set_Prm telegram with “WD_On=1”, then watchdog goes into DP_Control and monitors the telegram in Twd time. Otherwise, watchdog retains in the “Baud Control” state. This stage is called “DP_Control”.

Besides the watchdog mechanism mentioned above, i-87K modules with

analog output or digital output have their own host watchdog to monitor the status of PROFI-8x55. If PROFI-8x55 lost the control of DP-Master (due to any unpredictable fault), it can’t send a specific watchdog command to flush the watchdog timer of i-87K modules. Then the module will switch to safe mode, and wait for resetting. There are three kinds of safe-value at safe-mode, they are “retain last valid value”, “clear output”, and “switch to substitute value”. Although i-8K support this safe-mechanism, but it has no ability to process the fail safe value output by itself in case of MCU broken.


2.7. Node Address

The figure shown above is the hexadecimal rotary switches. It dominates the node (station) address of PROFI-8x55 in PROFIBUS. The switch which labeled MSB is high nibble of address and the other one is low nibble of address.

According to PROFIBUS specification, the station address which from 0 to 126 is valid, and the address 126 is a special address that supports remote setting by SSA telegram from Class 2 DP-Master. PROFI-8x55 applies the setting of rotary switch as its address if the address is valid. While the address is invalid, PROFI-8x55 loads the pre-saved value from EEPROM. Moreover, if the address is invalid (126) again, PROFI-8x55 awaits the SSA telegram and applies it. (Note: If you want to clear the setting stored at EEPROM, you just adjust rotary switch to FF before the power supplied).

Rotary Switch(dec)

Pre-saved address (EEPROM)

SSA Telegram PROFI-8x55 Station Address

0~125 Don’t care No Accept Rotary Switch 0~125 No Accept Pre-saved address

(EEPROM) 126

(default) Accept with

address 0~125

SSA Telegram and save address to

EEPROM

126~254

127~254 impossible N/A 255 Clear to 126 Accept with

address 0~125

SSA Telegram and save address to

EEPROM


Note 1: Only one DP-Slave station with address 126 permitted in the bus. Note 2: if you want to change the station address after data exchange, PROFI-8455 should return to Wait-Prm state and wait for one second to apply the new address.


2.8. Baud rate support PROFI-8x55 supports the entire baud rates of PROFIBUS. They are 9.6Kbps, 19.2Kbps, 45.45Kbps, 187.5Kbps, 500Kbps, 1.5Mbps, 3Mbps, 6Mbps, and 12Mbps. Because PROFI-8X55 has a functionality of auto-baud rate detection, users needn’t to set the baud rate of PROFI-8x55. Note: Many baud rates only are supported by the particular cable or speed. For the details, please refer to the above section “PROFIBUS Cable and Transmission Distance”


3. PROFIBUS DP System

3.1. The flow chart of the DP-slave

Before DP-Slave switch to data exchange state, it employs some telegrams to initialize and establish the connection with DP-Master. These telegrams include Slave Diagnosis (Slave_Diag), Set Parameter (Set_Prm), Check Configuration (Chk_Cfg), Slave Diagnosis, Data Exchange (Data_Exch) and optional global control (GC). The explanation is as follows:


3.2. Power On / Reset – Rotary switch While the power of PROFI-8x55 supplied, PROFI-8x55 loads the value of rotary switch first and decides to apply it or not by according to mechanism as follows. If the address of rotary switch is smaller than 126, PROFI-8x55 applies the value directly. PROFI-8x55 loads the pre-saved address from EEPROM, if the address of rotary switch is larger than 126 but smaller than 255. If the address stored at EEPROM is equal to 126 again, PROFI-8x55 will wait for the Set_Slave_Add(SSA) telegram. A special address 255 is used for recovering address 126 to EEPROM in case of error SSA_telegram setting or other cases. For details, please refer to the next chapter. The figure below shows the state flow of Wait SSA.


3.3. Parameterization Data In order to establish the connection completely, the DP-Slave should obtain enough information from the DP-Master. The DP-Slave applies the parameterization data to the I/O module of DP-Slave. DP-master divided these parameters into two parts: one is master-related parameter, and another one is module-related parameter. Master-related parameters provide the common setting between DP-Master and DP-Slave (e.g. Byte-Order). Module-related parameters provide the fundamental setting of the I/O modules in DP-Slave. If the parameters have been applied successfully, DP-state will switch to wait configuration, otherwise return to wait parameter.

PROFI-8x55 has two kinds of parameter data. First kind of parameters is the system data, and another one is I/O module data. In i-8K modules, there is no I/O module parameter except for i-8017H(S), i-8024, i-8050 and i-8080. In i-87K modules, every module has their own parameters to determine the data format and operation mode. We will describe the I/O modules individually in next section.

System parameters

1. Byte-Order The memory allocation is according to the slot identifier. Therefore, the

I/O module at slot 0 will allocate first, slot 1 in next and so on. Byte order is an important factor related to the memory allocation. Big-endian byte order (Motorola format) allocates more significant byte in lower memory address. On the other hand, little-endian Byte order (Intel format) allocates more significant byte in higher memory address.

For example, the integer which value is 0x0400(hex) will allocates 0x40(hex) in the first byte of the memory allocated to the integer and 0x00(hex) in the second byte.

Module parameters for I-8K module

i-8017H(S) i-8017 is a standard analog input module; it requires the parameter of

“Data Format”, “Data Range” and “Diag Enable” to establish the connection completely. In order to reduce the length of parameter data, PROFI-8x55 encapsulates this information into one byte per channel. So there are 8 bytes data for i-8017H and 16 bytes for i-8017HS.

Data range mean the measurement type (voltage, current) and range


(-10v to 10v or 4mA to 20mA). Data format can be selected either engineer unit format or hexadecimal format. “Diag Enable” is a flag that determines PROFI-8455 whether diagnostic message will report or not.

i-8024: i-8024 is similar to i-8017H(S) , please refer to i-8017H(S) .

i-8050: i-8050 is a programmable digital input/output module with 16

programmable I/O. It is different from the other digital modules. Before using i-8050, MCU must configure it first. PROFI-8x55 provides a 2-byte parameter to configure i-8050. The first byte controls the direction (Input or Output) of channel 15 to channel 8, and the second byte correspond to channel 7 to channel 0. As mentioned above, digit ‘1’ represents input and ‘0’ represents output.

i-8080: i-8080 is a counter/frequency module with 30 bytes parameter.

PROFI-8x55 divides these parameters into 2 parts; First part is only for frequency mode, which are updated period of auto mode, low-frequency mode, and high frequency respectively. Another part is for both Frequency and Counter mode, which are XOR-Register, Channel Mode, Frequency Band, Filter Enabled, and Low Pass Filter Pulse Width respectively. Note that if frequency band selected inappropriately, it will induce to incorrect measurement. For example, if an input signal is 80 KHz and frequency band is set to low frequency band with 1000ms update period, then it will measure 65.536 KHz instead of 80 KHz. Therefore selecting an appropriate frequency band is necessary. For the detail, please refer to i-8080 user manual. In additional, PROFI-8x55 provides another parameter that chooses the trigger type of count clear. User can choose one of them if needed.

Note: i-8080 hardware counter is 16 bit and maximum counter value is 65535. PROFI-8x55 uses the software method to expand this bound to 248, so user should pay attention to some limitations.

Module Parameter for i-87K module:

Before using i-87K module with PROFI-8x55, it must be initialized the


configuration. Unlike i-8K module, i-87K module uses the serial interface to communicate with MCU. In the following section, we will introduce the module parameters of i-87K briefly.

1. Type Code: Every operation mode has a unique type code in i-87K

module. Its range is from 0 to 128. This code dominates the module’s behaviors which are voltage input, current input, temperature input, digital I/O and so on. In general, most AI modules support parts of type code. For example, i-87017 supports type code 0x08 to 0x0D for voltage input.

2. Data Format: PROFI-8x55 provides four kinds of data format to

broaden the applicability. They are engineer unit format, Hexadecimal format, percentage of full scale and Ohm in engineer unit. Most i-87K modules support the first three formats, and the last format is only supported by i-87013 and i-87015.

Besides the essential parameter mentioned above, a number of modules have some additional parameter.

Analog Module, e.g. i-87013, i-87015, i-87017, i-87017R, i-87017RC, i-87017ML, i-87018, i-87018R, i-87018Z, i-87019R, i-87022, i-87024 and i-87026, have an additional parameter “Diag Enable” to determine whether diagnosis report or not.

Among the analog modules, most of them share a common type

code. It means that every channel operates at the same mode, and this manner will narrow its applicability. ICP DAS provides a number of modules supporting individual channel configuration to solve this problem; Analog Input modules i-87015, i-87018Z and i-87019R provide individual channel configuration. In contrast to analog input module, analog output modules i-87022 and i-87026 also support.

In Counter/Frequency module i-87082, type-code is fixed to 0x80, and its parameters are divided into several parts, as shown below:

1. Frequency Gate Time: Frequency gate time is also called “sampling period”. It controls the signal-passing time. The counter takes effect during this period only, when AC-signal


supplied. After this period has elapsed, PROFI-8x55 transforms this count into appropriate count or frequency immediately and available in INPUT buffer.

2. High Level Trigger Voltage: It is the threshold of the minimum

input voltage of logic “1” at the non-isolated input. The default value is 24(2.4 volt).

3. Gate Mode: Gate mode is like frequency gate time. The

difference between them is that gate mode is for counter mode and frequency gate time is for frequency mode. Gate mode with 0 is low active which means the count-signal take into account if GATE pin is connected to logic “0”. Gate mode with 1 is like Gate mode with 0, but the mode is high active. Gate mode with 2 disables gate control and GATE pin is regardless.

4. Low Level Trigger Voltage: It is the threshold of the maximum

input voltage of logic “0” at the non-isolated input. The default value is 8(0.8 volt).

5. Input Mode: This parameter is used to select the input

type(isolated or non-isolated). The Isolated input is used to isolate the electromagnetic interference. The Isolated input uses photo-couple to pass the On/Off signal to i-87082 and the non-isolated input is directly accepted the input signal into i-87082.

6. Filter Enabled: Digital filter is provided by i-87082, and it can be

enabled by setting this parameter to “Enable”.

7. Trigger Type of Channel 1 & 0: Trigger type is a parameter that control the polarity(Level Trigger) and direction(Edge Trigger) of “Clear”, ”Start”, “Stop” command. The default setting is Rising Edge Trigger. i-87082 can accept command only when the state of the function selection is changed from 0(Disable) to 1(Start) or 2(Stop) or 3(Clear). On the other hand, i-87082 accepts command only with the value of the function selection larger than 0 when the setting is High Level Trigger.


8. High Level Pulse Width: This parameter is an important factor of digital filter. It dominates the minimum pulse width that i-87082 can accept. If pulse width is shorter than that, it will be filtered. Otherwise, it can pass through. For example, if there is a signal 200 KHz with duty cycle 50% and high level pulse width is set to 3us, so measurement signal is limited to 166 KHz. The signal has been filtered, because the signal with 200 KHz has the pulse width of 2.5us and it is smaller than 3us. Note: Formula of Maximum Frequency is equal to the inverse of pulse width divided by duty cycle.

9. Low Level Pulse Width: This parameter is the same as High

Level Pulse width. Please refer to High Level Pulse Width.

10. Preset Count of Counter N: The preset count is a parameter with four bytes length. Preset count loaded when clear command issued or module reset. The range of this parameter is between 0 and 232. Notice that this setting will not be cleared by clear command. It only can be modified by Set_Prm telegram.

11. Maximum Count of Counter N: Maximum count is the

threshold of the overflow. If the count value reaches this threshold, the channel will overflow and halt for clear. Otherwise, the counter continues counting. There is the difference between i-87082 and i-8080. The overflow presentation in i-8080 is an integer with 16 bits length just only one bit in i-87082. Note: When overflow flag is not cleared by users, counter will be held until clear command is issued. As soon as the channel overflows, the diagnostic message will reported.

Module Parameter for Output modules: The output modules consist of Analog Output modules and Digital Output modules. They are different from the Input modules. Output modules have the Safe Value output mechanism. They output the Safe Value while PROFI-8x55 has been changed to stop mode (or offline mode). The safe value can make


sure of the correctness of operating. There are three modes in safe value for users: Retain Last Value, Clear Output and Switch to Substitute Value. Retain Last Value is that PROFI-8x55 retain the last valid output value for the corresponding channel. Clear Output clear the corresponding channel to analog zero volt, analog zero ampere or digit logic “0”. Substitute Value follows Safe Mode Selection in module parameter, it must be obey the data range of corresponding data format and type-code.

The following figure shows the state flow of Wait Parameter.


3.4. Wait Configuration

Configuration data is consisting of module-identifier. The main purpose is to check the configuration data from DP-Master against the stored one in PROFI-8x55. If these configuration data is coincident between PROFI-8x55 and DP-master, the DP-mode of PROFI-8x55 will switch from wait configuration to data exchange. Otherwise, PROFI-8x55 will report “Configuration Fault” and switch from wait configuration to wait parameter again. Configuration Data

Configuration data specifies the number of input/output bytes of PROFI-8x55. PROFI-8x55 applies this information to allocate appropriate number of memory space for the module plugged in I/O expansion slot on PROFI-8x55. The maximum number of Input byte is 136 and 32 bytes for output. It is not permitted to exceed this quantity. The following table shows the module name and corresponding input byte, output byte and configuration code.

Module name Input Length Output Length Cfg Code i-8017HS – S1 16 Byte(8*2) 0 0x57

i-8017H(S) – D2 32 Byte(16*2) 0 0x5F i-8024 0 8 Byte 0x63 i-8037 0 2 Byte 0x21 i-8040 4 Byte 0 0x13 i-8041 0 4 Byte 0x23 i-8042 2 Byte 2 Byte 0x31 i-8050 2 Byte 2 Byte 0x31 i-8051 2 Byte 0 0x11 i-8052 1 Byte 0 0x10 i-8053 2 Byte 0 0x11 i-8054 1 Byte 1 Byte 0x30 i-8055 1 Byte 1 Byte 0x30 i-8056 0 Byte 2 Byte 0x21 i-8057 0 Byte 2 Byte 0x21 i-8058 1 Byte 0 0x10 i-8060 0 1 Byte 0x20


i-8063 1 Byte 1 Byte 0x30 i-8064 0 1 Byte 0x20 i-8065 0 1 Byte 0x20 i-8066 0 1 Byte 0x20 i-8068 0 1 Byte 0x20 i-8069 0 1 Byte 0x20 i-8077 1 Byte 1 Byte 0x20 i-8080 48Byte(8*6) 1 Byte 0xC0,0x00,0x2F

i-87013 8 Byte(4*2) 0 0x53 i-87015(P) 14 Byte(7*2) 0 0x56 i-87017(R) 16 Byte(8*2) 0 0x57 i-87017RC 16 Byte(8*2) 0 0x57 i-87017ML 16 Byte(8*2) 0 0x57 i-87018(R) 16 Byte(8*2) 0 0x57 i-87018(R)

(w/ CJC Read/Offset) 18

Byte(8*2+2@1)2 Byte(0+2@2) 0x57,0xC0,0x01,

0x40 i-87018Z 20 Byte(10*2) 0 0x59 i-87018Z

(w/ CJC Read/Offset) 22 Byte

(10*2+2@1) 3 Byte(0+3@2) 0x59,0xC0,0x02,

0x40 i-87019R 16 Byte(8*2) 0 0x57 i-87019R

(w/ CJC Read/Offset) 18

Byte(8*2+2@1)3 Byte(0+3@2) 0x57,0xC0,0x02,

0x40 i-87022 0 4 Byte(2*2) 0x61 i-87024 0 8 Byte(4*2) 0x63 i-87026 0 4 Byte(2*2) 0x61

i-87040(W) 4 Byte 0 0x13 i-87040(W)(w/ Cnt) 68 Byte(4+32*2) 5 Byte(0+4) 0x13,0xC0,0x03,

0x5F i-87041(W) 0 4 Byte 0x23 i-87046W 2 Byte 0 0x11

i-87046W(w/ Cnt) 34 Byte(2+16*2) 2Byte(0+2) 0x11,0xC0,0x01,0x4F


0x4F i-87052(W) 1 Byte 0 0x10

i-87052(W)(w/ Cnt) 17 Byte(1+8*2) 1 Byte(0+1) 0x10,0xC0,0x00,0x47



0x4F i-87054(W) 1 Byte 1 Byte 0x30


i-87055(W) 1 Byte 1 Byte 0x30 i-87055(W)(w/ Cnt) 17 Byte(1+8*2) 2 Byte(1+1) 0x30,0xC0,0x00,

0x47 i-87057(W) 0 2 Byte 0x21 i-87058(W) 1 Byte 0 0x10


i-87059W 1 Byte 0 0x10 i-87059W(w/ Cnt) 17 Byte(1+8*2) 1 Byte(0+1) 0x10,0xC0,0x00,

0x47 i-87063(W) 1 Byte 1 Byte 0x30

i-87063(w/ Cnt) 9 Byte(1+4*2) 2 Byte(1+1) 0x30,0xC0,0x00,0x43

i-87064(W) 0 1 Byte 0x20 i-87065(W) 0 1 Byte 0x20 i-87066(W) 0 1 Byte 0x20 i-87068(W) 0 1 Byte 0x20 i-87069(W) 0 1 Byte 0x20 i-87082(W) 9 Byte 1 Byte(1 OR 1) 0x53,0x10,0x20

-S1 means single-end input mode -D2 means differential input mode - Data length of analog input module = channel number * data length per channel. -Data length of digital input module = the length of basic input data + channel number * data length of counter per channel. -Data length of digital output module = the length of basic output data + optional data length of clear command. -OR means DO data have combined with Clear command into one byte. -@1 means the data length of CJC temperature. -@2 means the data length of CJC offset setting command.


The figure is shown below the state flow of Wait Configuration.


3.5. Data Exchange

After the parameterization and configuration processes have been accomplished, PROFI-8X55 exchanges I/O data with the DP-Master cyclically. In following section, we introduce the Numeric Representation and Byte Order briefly.

Numeric Representation

Among Analog Input modules or Analog Output modules, there are many numeric representations, include Engineer-Unit, Hexadecimal, Percentage of Full Scale and Ohm in Engineer-Unit. We will introduce the numeric representation in i-8K module and i-87K module. i-8K Series

Analog Input Module ( i-8017H, i-8017HS)

+/- 10 V ：

The range for Engineer-Unit: -10000~10000(mV) The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 10v), 2000~3FFF (-10v~1.22mV)

Conversion from Engineer-Unit to 2’s complement hexadecimal:

8192 1 if 0 1000010000

EngineerValueHexValue EngineerValue

8192 16384 if -10000 010000


Measurement Value Decimal Hexadecimal +10v(Engineer mode) 10000 0x2710

0v(Engineer mode) 0 0x0000 -10v(Engineer mode) -10000 0xD8F0

+10v(Hex mode) 8191 0x1FFF +5v(Hex mode) 4095 0x1000 0v(Hex mode) 0 0x0000 -5v(Hex Mode) 12288 0x3000 -10v(Hex mode) 8192 0x2000


+/- 5 V ：

The range for Engineer-Unit: -5000~5000(mV) The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 5v), 2000~3FFF (-5v~0.61mV) Conversion from Engineer-Unit to 2’s complement hexadecimal:

8192 1 if 0 50005000


8192 16384 if -5000 05000


Measurement Value Decimal Hexadecimal +5v(Engineer mode) 5000 0x1388

0v(Engineer mode) 0 0x0000 -5v(Engineer mode) -5000 0xEC78 +5v(Hex mode) 8191 0x1FFF

+2.5v(Hex mode) 4095 0x1000 0v(Hex mode) 0 0x0000

-2.5v(Hex mode) 12288 0x3000 -5v(Hex Mode) 8192 0x2000

+/- 2.5 V ：

The range for Engineer-Unit: -2500~2500(mV) The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 2.5v), 2000~3FFF (-2.5v~0.3mV) Conversion from Engineer-Unit to 2’s complement hexadecimal:

8192 1 if 0 25002500


8192 16384 if -2500 02500


Measurement Value Decimal Hexadecimal +2.5v(Engineer mode) 2500 0x09C4

0v(Engineer mode) 0 0x0000 -2.5v(Engineer mode) -2500 0xF63C

+2.5v(Hex mode) 8191 0x1FFF +1.25v(Hex mode) 4095 0x1000

0v(Hex mode) 0 0x0000 -1.25v(Hex mode) 12288 0x3000 -2.5v(Hex Mode) 8192 0x2000


+/- 1.25 V ：

The range for Engineer-Unit: -1250~1250(mV) The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 1.25v), 2000~3FFF (-1.25v~0.15mV) Conversion from Engineer-Unit to 2’s complement hexadecimal:

8192 1 if 0 12501250


8192 16384 if -1250 <01250


Measurement Value Decimal Hexadecimal +1.25v(Engineer mode) 1250 0x04E2

0v(Engineer mode) 0 0x0000 -1.25v(Engineer mode) -1250 0xFB1E

+1.25v(Hex mode) 8191 0x1FFF +0.675v(Hex mode) 4095 0x1000

0v(Hex mode) 0 0x0000 -0.675v(Hex mode) 12288 0x3000 -1.25v(Hex Mode) 8192 0x2000

+/- 20 mA ：

The range for Engineer-Unit: -20000~20000(mV) The range for 2’s complement hexadecimal: 0000~1FFF (0mA ~ 20mA), 2000~3FFF (-20mA ~ -2.44uA) Conversion from Engineer-Unit to 2’s complement hexadecimal:

8192 1 if 0 2000020000


8192 16384 if -20000 <020000


Measurement Value Decimal Hexadecimal 20mA(Engineer mode) 20000 0x4E20 10mA(Engineer mode) 10000 0x2710

0v(Engineer mode) 0 0x0000 20mA(Hex mode) 8191 0x1FFF 10mA(Hex mode) 4095 0x1000

0v(Hex mode) 0 0x0000


Analog output module ( I-8024)：

+/- 10 V ：

The range for Engineer-Unit: -10000~10000(mV) The range for 2’s complement hexadecimal: 0000~7FFF (0v ~ 10v), 8000~FFFF (-10v~0.3mV) Conversion from Engineer-Unit to two’s complement hexadecimal:

32768 1 if 0 1000010000


32768 65536 if -10000 <010000


Measurement Value Decimal Hexadecimal 10v(Engineer mode) 10000 0x2710 0v(Engineer mode) 0 0x0000

-10v(Engineer mode) -10000 0xD8F0 10v(Hex mode) 32767 0x7FFF 0v(Hex mode) 0 0x1000

-10v(Hex mode) -32768 0x8000

+ 20mA ：

The range for Engineer-Unit: -20000~20000(mV) The range for 2’s complement hexadecimal: 0000~7FFF (0v ~ +20mA) Conversion from Engineer-Unit to 2’s complement hexadecimal:

32768 120000

EngineerValueHexValue

Measurement Value Decimal Hexadecimal 20mA(Engineer mode) 20000 0x4E20 0mA(Engineer mode) 0 0x0000

20mA(Hex mode) 32767 0x7FFF 0mA(Hex mode) 0 0x0000


i-87K Module

i-87K I/O modules are serial communication-based, they provide various data formats. For example, Engineer-Unit, Percentage of Full Scale, 2’s Complement Hexadecimal and Ohm format are supported in these modules. The relationship between the measurement type and the measurement unit is represented in the following table.

Type Conditions Unit Voltage/Current -10V≦Voltage≦10V

20mA≧Current≧-20mA milli-Volt(mV) micro-Ampere(µA)

Voltage Voltage≧10V or Voltage≦-10V

Volt(V)

Temperature RTD/Pt/Ni/Cu-RTD/Thermocouple 0.1 Degree Celsius Resistor RTD/Pt/Ni/Cu-RTD/Thermocouple 0.1 Ohm(0.1 Ω)

i-87013 and i-87015 Analog Input Module

Type-Code Input Range Data Format Max. Min Engineer Unit +1000 -1000

% of FSR +10000 -100002's complement HEX 7FFF 8000

20 Pt-100 (a =

0.00385) -100°C to 100°C

Ohm +1385 +0602Engineer Unit +1000 +0000

% of FSR +10000 +000002's complement HEX 7FFF 0000

21 Pt-100 (a =

0.00385) 0°C to 100°C



22 Pt-100 (a =

0.00385) 0°C to 200°C



23 Pt-100 (a =

0.00385) 0°C to 600°C

Ohm +3135 +1000Engineer Unit +1000 -1000

% of FSR +10000 -100002's complement HEX 7FFF 8000

24 Pt-100 (a =

0.003916) -100°C to 100°C

Ohm +1391 +0595


Engineer Unit +1000 +0000% of FSR +10000 +00000

2's complement HEX 7FFF 0000 25

Pt-100 (a = 0.003916) 0°C to

100°C Ohm +1391 +1000



Pt-100 (a = 0.003916) 0°C to

200°C Ohm +1771 +1000



Pt-100 (a = 0.003916) 0°C to

600°C Ohm +3172 +1000

Engineer Unit +1000 -0800 % of FSR +10000 -08000

2's complement HEX 7FFF 999A 28

Nickel 120 -80°C to 100 °C



29 Nickel 120

0°C to 100°C Ohm +2006 +1206


2's complement HEX 7FFF D556 2A

Pt-1000(a = 0.00385) -200°C to

600°C Ohm +31371 +01852


2's complement HEX 7FFF EEEF 2B*1

Cu 100 (a = 0.00421) -20°C to

150°C Ohm +1631 +0915

Engineer Unit +2000 0000 % of FSR +10000 -00000

2's complement HEX 7FFF 0000 2C*1

Cu 100 a = 0.004210°C to 200°C


% of FSR +10000 -013332's complement HEX 7FFF EEEF

2D*1 Cu 1000 a =

0.00421 -20°C to 150°C

Ohm +16317 +09156Engineer Unit +2000 -2000 2E*2 Pt 100 a = 0.00385

-200°C to +200°C % of FSR +10000 -10000


2's complement HEX 7FFF 8000 Ohm +1758 +0184


2's complement HEX 7FFF 8000 2F*2

Pt 100 a = 0.003916 -200°C to +200°C


% of FSR +10000 -033332's complement HEX 7FFF D556

80*2 Pt 100 a = 0.00385-200°C to +600°C


% of FSR +10000 -033332's complement HEX 7FFF D556

81*2 Pt 100 a = 0.003916

-200°C to +600°COhm +3172 +0171

* 1: Type 2B, 2C and 2D are only available with i-87015. * 2: Type 2E, 2F, 80 and 81 are only available with the i-87015 firmware version A1.10 and later, i-87013 firmware version B1.3 and later. i-87017/i-87017R Analog Input Module

Type-Code Input Range Data Format Max. Min

Engineer Unit +10000 -10000

% of FSR +10000 -1000008 -10V to +10V

2's Complement HEX 7FFF 8000


% of FSR +10000 -1000009 -5V to +5V



% of FSR +10000 -100000A -1V to +1V



% of FSR +10000 -100000B -500mV to +500mV



% of FSR +10000 -100000C -150mV to +150mV


0D -20mA to +20mA Engineer Unit +20000 -20000


% of FSR +10000 -10000


i-87017RC Analog Input Module Type-Code Input Range Data Format Max. Min

Engineer Unit +04000 +20000

% of FSR +10000 -1000007 -4mA to +20mA



% of FSR +10000 -100000D -20mA to +20mA



% of FSR +10000 -100001A +0A to +20mA


i-87017ML Analog Input Module Type-Code Input Range Data Format Max. Min


% of FSR +10000 -100001B -150V to +150V



% of FSR +10000 -100001C -50V to +50V


i-87018/i-87018R Analog Input Module Type-Code Input Range Data Format Max. Min


% of FSR +10000 -1000000 -15mV to +15mV



% of FSR +10000 -1000001 -50mV to +50mV



% of FSR +10000 -1000002 -100mV to +100mV


03 -500mV to +500mV Engineer Unit +500 -500


% of FSR +10000 -10000



% of FSR +10000 -1000004 -1V to +1V



% of FSR +10000 -1000005 -25V to +25V



% of FSR +10000 -1000006 -20mA to +20mA



% of FSR +10000 -027630E J Type

2's Complement HEX 7FFF DCA2


% of FSR +10000 -019680F K Type

2's Complement HEX 7FFF E6D0


% of FSR +10000 -0675010 T Type

2's Complement HEX 7FFF A99A


% of FSR +10000 -0270011 E Type

2's Complement HEX 7FFF DD71


% of FSR +10000 +0000012 R Type



% of FSR +10000 +0000013 S Type



% of FSR +10000 +0000014 B Type



% of FSR +10000 -0207715 N Type

2's Complement HEX 7FFF E56B



% of FSR +10000 +0000016 C Type



% of FSR +10000 -0250017 L Type

2's Complement HEX 7FFF E000


% of FSR +05000 -1000018 M Type

2's Complement HEX 4000 8000


% of FSR +10000 -0222219 L Type

DIN43710 2's Complement HEX 7FFF E38F

i-87019R Analog Input Module



% of FSR +10000 -1000000 -15mV to +15mV



% of FSR +10000 -1000001 -50mV to +50mV



% of FSR +10000 -1000002 -100mV to +100mV



% of FSR +10000 -1000003 -500mV to +500mV



% of FSR +10000 -1000004 -1V to +1V



% of FSR +10000 -1000005 -2.5V to +2.5V


Engineer Unit +20000 -2000006 -20mA to +20mA

% of FSR +10000 -10000




% of FSR +10000 -1000008 -10V to +10V



% of FSR +10000 -1000009 -5V to +5V



% of FSR +10000 -100000A -1V to +1V



% of FSR +10000 -100000B -500mV to +500mV



% of FSR +10000 -100000C -150mV to +150mV



% of FSR +10000 -100000D -20mA to +20mA



% of FSR +10000 -027630E J Type

2's Complement HEX 7FFF DCA2


% of FSR +10000 -019680F K Type

2's Complement HEX 7FFF E6D0


% of FSR +10000 -0675010 T Type

2's Complement HEX 7FFF A99A


% of FSR +10000 -0270011 E Type

2's Complement HEX 7FFF DD71


% of FSR +10000 +0000012 R Type


13 S Type Engineer Unit +17680 +00000


% of FSR +10000 +00000



% of FSR +10000 +0000014 B Type



% of FSR +10000 -0207715 N Type

2's Complement HEX 7FFF E56B


% of FSR +10000 +0000016 C Type



% of FSR +10000 -0250017 L Type

2's Complement HEX 7FFF E000


% of FSR +05000 -1000018 M Type

2's Complement HEX 4000 8000


% of FSR +10000 -0222219 L Type

DIN43710 2's Complement HEX 7FFF E38F

i-87022 Analog Output Module


Engineer Unit 20000 00000

% of FSR +10000 +00000 0 0mA to 20mA

Hexadecimal FFF 000


% of FSR +10000 +00000 1 4 mA to 20mA

Hexadecimal FFF 000


% of FSR +10000 +00000 2 0V to 10V

Hexadecimal FFF 000


i-87026 Analog Output Module Type-Code Input Range Data Format Max. Min


% of FSR +10000 +00000 0 0 mA to 20mA

Hexadecimal FFFF 0000


% of FSR +10000 +00000 1 4 mA to 20mA

Hexadecimal FFFF 0000


% of FSR +10000 +00000 2 0V to 10V

Hexadecimal FFFF 0000 i-87024 Analog Output(Only support Engineer Unit)


30 0 mA to 20mA Engineer Unit +20000 +00000

31 4 mA to 20mA Engineer Unit +20000 +04000

32 0V to 10V Engineer Unit +10000 +00000

33 -10V to 10V Engineer Unit +10000 -10000

34 0V to 5V Engineer Unit +05000 +00000

35 -5V to 5V Engineer Unit +05000 -05000


Byte Order and Data Address i-8K Series & i-87K Series - General Digital Input / Output The general digital input or output module arrange its data with big-endian in follow (i-8040 or i-87040).

The little-endian is shown as follows.

i-87K Series - Digital Input w/ Counter

The i-87K digital input modules not only provide a basic input function but

also have a function of counter which maximum count can be up to 65535. You can choose it which label “i-870XX w/ Counter Func.” in GSD file. The figure shows below is data arrangement of i-87040 w/ Counter.

Data Arrangement of Digital Input w/ Counter: Input Part

Data Arrangement of Digital Input w/ Counter: Output Part


i-8K Series & i-87K Series – General Analog Input ( w/o CJC Read/Offset ) and Analog Output

Analog module transforms the continuous signal or discrete signal into

another type signal. Discrete signal always 2 byte per channel. For example, the following figure shows data arrangement of i-87024(i-8024). Note: The order of I/O data is ranked by channel’s identifier, so the channel with lower ID has priority over the channel with higher ID.

i-8K Series & i-87K Series – General Analog Input (w/ CJC Read/Offset )

The temperature is a kind of analog signals. i-87K modules(i-87013, i-87015, i-87018 and i-87019) provide several solutions to measure the different sensors or range. Most of temperature sensor return the absolution value, but the thermocouple is different, it return the relative-value between hot-junction and cold junction. The thermocouples measure the temperature difference between hot junction point and cold junction point. But the ordinary thermocouples have no cold-junction point so it can not measure the accuracy


temperature using hot junction point only. In order to solve this problem, i-87K modules which use thermocouple to measure temperature support the Cold Junction Compensation by an internal temperature sensor. Although CJC’s problem has been dealt, there is a problem still remained. The problem is that CJC temperature sensor has some varieties compare to practical temperature. Therefore, PROFI-8x55 provides a byte to calibration this difference. The following figure is data arrangement of i-87024 w/ CJC Read/Offset.

The bytes of CJC offset detail describes as follows. There are two kinds of data length, 2 bytes and 3 bytes. The data length with 2 byte is used in module without individual channel configure and the data length with 3 byte is used in module with individual channel configure.


Bit Arrangement of CJC-Offset using Big-Endian Bit. Byte0.3~0 Byte1.7 Byte1.6 Byte1.5 Byte 1.4~Byte2.0

Func. Chn.Sel. Ena/Disa Reserved Sign Offset-Value(0.01)

Bit Arrangement of CJC-Offset using Little-Endian Bit. Byte2.3~0 Byte1.7 Byte1.6 Byte1.5 Byte 1.4~Byte0.0

Func. Chn.Sel. Ena/Disa Reserved Sign Offset-Value Func. Meaning Description Chn.Sel.(8bits) * Channel Selection(0~8) CJC Calibration Channel Ena/Disa(1bit) Enable/Disable CJC Calibration Enable Reserved(1bit) Reserved Sign(1bit) Sign (0 -> Pos, 1-> Neg) Plus or minus offset value to

calibration temperature Offset-Value (13bit)

Offset value Offset value compare to practice temperature

*: This field only available in i-87019R. “Chn.Sel.” from 0 to 7 is corresponding to channel 0 to channel 7 and Chn.Sel. 8 is a broadcast channel ID that available to all channel. Note: The maximum offset for i-87019R is 4096 and its unit is 0.01; The maximum offset for i-87108Z is 127 and its unit is 0.1 Note: While Enable/Disable is set (“1”), the calibration works. Note: The length of output data in i-87018(R/W) is 2 bytes, and 3 bytes for i-87019R and i-87018Z.

i-8K Series & i-87K Series – Counter/Frequency

i-8080 and i-87082 are counter/frequency module, the differences described in the following table.

Module Name i-8080 i-87082 Count Range 0~248(Count+Overflow) 0~232(Count) Frequency Range 0~450KHz 0~100KHz Overflow 0~216 0~1 Channel Number 8(Up & Freq) or 4(others) 2

The following figure shows the data arrangement of input data. It includes

the normal count (4 Bytes) and overflow count (2bytes).


Data arrangement of input part in i-8080 module

There are nine input bytes in i-87082. The last byte indicates the status of

the counter, and the others are the count value of each channel. The bit arrangement of the last input byte is shown below

i-87082 – bit arrangement of the last input byte (Overflow)

Bit. Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Func. Reserved CH1.Overflow CH0.Overflow

The following figure shows the data arrangement of the input bytes in

i-87082 module.


i-87082 - Data arrangement of the input bytes (Cnt/Freq)

There is an additional function in both of i-8080 and i-87082. It is “Clear

Count” command. The clear command of i-8080 is the same as i-87082. It just set the corresponding bit to “1”(Level-trigger) or set it from “0” to “1” (Edge-trigger) then the corresponding channel count will clear soon, as show below.

Bit Arrangement of Output Data in i-8080(1 Byte) Bit. 7 6 5 4 3 2 1 0

Func. Clr7 Clr6 Clr5 Clr4 Clr3 Clr2 Clr1 Clr0

Func. Meaning Description ClrN Clear Count of Channel N Clear both overflow and count value i-87082 provide more functionality than i-8080. They are “Start Count”

and ”Stop Count”. These functionalities increase the applicability of i-87082 module. For more detail description, please refer to the following table.

i-87082 output data (1 Byte)

Bit 7 6 5 4 3 2 1 0 Func. E-DO.1 E-DO.0 DO.1 DO.0 C1.S1 C1.S0 C0.S1 C0.S0


Func. Meaning Descriptions E-DO.1

Enable DO.1

Enable=1, DO.1 is output. Enable=0, No output.

E-DO.0

Enable DO.0

Enable=1, DO.0 is output. Enable=0, No output.

DO.1 Digital Output CH1 Digital Output value of Channel 1.DO.0 Digital Output CH0 Digital Output value of Channel 0.C1.S1 Channel 1 Func.Sel. 1C1.S0 Channel 1 Func.Sel. 0

Channel 1 Function Selection. See table below.

C0.S1 Channel 0 Func.Sel. 1C0.S0 Channel 0 Func.Sel. 0

Channel 0 Function Selection. See table below.

Func.S1 Func.S0 Function 0 0 No Action(Disable)0 1 Stop counting 1 0 Start counting 1 1 Clear count

Statistic Table of i-8K & i-87K The following table shows the memory allocation of standard I/O and Counter / Frequency module, and we divide this table into four parts: The first table describes each function’s meaning. The second table shows the input allocation of standard I/O, the third table shows the output allocation of standard I/O and the last part shows the Input/Output memory allocation of the Counter/Frequency module. We have simplified the following tables. The remainders of the table must be deduced by users.

Function Description Table Function Name Meaning

Da~b Digital I/O Value(bit a~b) A.Na~b Analog Value of Channel N(bit a~b) C.Na~b Count Value of Channel N(bit a~b) CJCa~b CJC Temperature(bit a~b) Clra~b Clear Command(bit a~b)

OvNa~b Overflow Indicator(bit a~b)


Standard I/O – input memory allocation Meas.Type DI DI w/ Count AI AI w/ CJC.read Byte.Order Big Little Big Little Big Little Big Little BYTE.0 D24~31 D0~7 D24~31 D0~7 A.08~15 A.00~7 A.08~15 A.00~7 BYTE.1 D16~23 D8~15 D16~23 D8~15 A.00~7 A.08~15 A.00~7 A.08~15 BYTE.2 D8~15 D16~23 D8~15 D16~23 A.18~15 A.10~7 A.18~15 A.10~7 BYTE.3 D0~7 D24~31 D0~7 D24~31 A.10~7 A.18~15 A.10~7 A.18~15 BYTE.4 C.08~15 C.00~7 A.28~15 A.20~7 A.28~15 A.20~7 BYTE.5 C.00~7 C.08~15 A.20~7 A.28~15 A.20~7 A.28~15 BYTE.6 C.18~15 C.10~7 A.38~15 A.30~7 A.38~15 A.30~7 BYTE.7 C.10~7 C.18~15 A.30~7 A.38~15 A.30~7 A.38~15 BYTE.8 C.28~15 C.20~7 A.48~15 A.40~7 A.48~15 A.40~7 BYTE.9 C.20~7 C.28~15 A.40~7 A.48~15 A.40~7 A.48~15 BYTE.10 C.38~15 C.30~7 A.58~15 A.50~7 A.58~15 A.50~7 BYTE.11 C.30~7 C.38~15 A.50~7 A.58~15 A.50~7 A.58~15 BYTE.12 C.48~15 C.40~7 A.68~15 A.60~7 A.68~15 A.60~7 BYTE.13 C.40~7 C.48~15 A.60~7 A.68~15 A.60~7 A.68~15 BYTE.14 C.58~15 C.50~7 A.78~15 A.70~7 A.78~15 A.70~7 BYTE.15 C.50~7 C.58~15 A.70~7 A.78~15 A.70~7 A.78~15 BYTE.16 C.68~15 C.60~7 CJC8~15 CJC0~7 BYTE.17 C.60~7 C.68~15 CJC0~7 CJC8~15

Standard I/O – output memory allocation

Meas.Type DO DI w/ Count AO AI w/ CJC.offsetByte.Order Big Little Big Little Big Little Big Little BYTE.0 D24~31 D0~7 clr24~31 clr0~7 A.08~15 A.00~7 ChnSel offset7~0

BYTE.1 D16~23 D8~15 clr16~23 clr8~15 A.00~7 A.08~15 Ena&

offset8~15

Ena&

offset8~15

BYTE.2 D8~15 D16~23 clr8~15 clr16~23 A.18~15 A.10~7 offset7~0 ChnSel

BYTE.3 D0~7 D24~31 clr0~7 clr24~31 A.10~7 A.18~15 BYTE.4 A.28~15 A.20~7 BYTE.5 A.20~7 A.28~15 BYTE.6 A.38~15 A.30~7 BYTE.7 A.30~7 A.38~15 BYTE.8 A.48~15 A.40~7 BYTE.9 A.40~7 A.48~15 BYTE.10 A.58~15 A.50~7 BYTE.11 A.50~7 A.58~15


Counter/Frequency memory allocation Meas.Type i-8080.Inp. i-8080.Outp. i-87082.Inp i-87082.Outp Byte.Order Big Little Big Little Big Little Big Little BYTE.0 C024~31 C00~7 Clr0~7 Clr0~7 C024~31 C00~7 E-DO.1

/E-DO.2

/DO.1

/DO.0

/C1.S1

/C1.S0

/C0.S1

/C0.S0

E-DO.1

/E-DO.2

/DO.1

/DO.0

/C1.S1

/C1.S0

/C0.S1

/C0.S0

BYTE.1 C016~23 C08~15 C016~23 C08~15 BYTE.2 C08~15 C016~23 C08~15 C016~23 BYTE.3 C00~7 C024~31 C00~7 C024~31 BYTE.4 Ov08~15 Ov00~7 C124~31 C10~7 BYTE.5 Ov00~7 Ov08~15 C116~23 C18~15 BYTE.6 C124~31 C10~7 C18~15 C116~23 BYTE.7 C116~23 C18~15 C10~7 C124~31 BYTE.8 C18~15 C116~23 Ov00~1 Ov00~1 BYTE.9 C10~7 C124~31 BYTE.10 Ov18~15 Ov10~7 BYTE.11 Ov10~7 Ov18~15 BYTE.12 C224~31 C20~7 BYTE.13 C216~23 C28~15 BYTE.14 C28~15 C216~23 BYTE.15 C20~7 C224~31 BYTE.16 Ov28~15 Ov20~7 BYTE.17 Ov20~7 Ov28~15

The following figures describe the state flow of data exchange. The first figure shows the state flow of data exchange. There are four modules (i-87018Z, i-87024, i-87017W and i-87082) plugged in PROFI-8x55.


The second figure shows another state flow of data exchange. There is no

output module that installation in PROFI-8x55 and only input module install.


3.6. Diagnostic Message Report

The diagnostic messages report to DP-Master when the DP-Slave has errors or the unusual event occurs. Usually, It report diagnosis due to following standard channel-related event. Error code “2”,”3”,”5”,”6”,”7” and ”8” are supported by PROFI-8x55.

Error Code Error Type

0 Reserved 1 Short Circuit 2 Under-voltage 3 Over-voltage 4 overload 5 Over-temperature 6 Line/wire Break(Sensor Only) 7 Upper Limit Value Exceeded(Current) 8 Lower Limit Value Exceeded(Current, Sensor) 9 Error

10~15 Reserved 16~31 Manufacture Specific/Device-Related

PROFI-8x55 provides diagnosis report for Analog I/O and

Counter/Frequency module. In Analog I/O module, the reason of diagnosis reports is that the input/output/count exceeds the default maximum value/ minimum value or temperature sensor line break. In Counter/Frequency modules (I-87082 only), it usually due to the count exceeds the setting of “Maximum Count of Counter N” that set by Set_Prm telegram.

In PROFI-8155/8255, the number of channel-related diagnostic message

is limit to 32. The diagnostic messages large than 104 bytes (39 channel -related diagnoses) will be ignore.

The channel-related diagnosis has been described above. There is

another kind of diagnosis provided by PROFI-8x55; it called device-related diagnosis. The device-related diagnosis in PROFI-8x55 is “Module Offline”. When the module is unplugged or breakdown, PROFI-8x55 will report the error with device-related diagnosis. The error-ID and corresponding meaning is shown in following table.


Error ID Meaning 1 Slot 0- Module Offline 2 Slot 1- Module Offline

Several offline modules can be detected at the same time. PROFI-8155/8255 combines these Error-IDs into one byte and return to DP-Master once. For example, we know that all the modules in PROFI-8x55 disconnect (offline) when DP-Master gets a device-related diagnosis with error code “3”. There are two examples that describe different error or warning event as follows. The first example is about that the I-87082 module unplugged and the diagnostic message reports. The following figure can shows the report process.

The second example is about the input value of channel 0 of I-8017W is larger than threshold value, and the diagnostic message reports. The following figure can shows the report process.



3.7. DP-V1 Acyclic Service

DP-V1 is the extension of DP-V0, it extent the original cyclic data exchange to acyclic one. Traditional data-exchange exploits default SAP for cyclic data-exchange. In DP-V1, Additional SAPs(49, 50, 51) for acyclic service, The SAP 49 is Resource Manager for manage each class 2 connection; The SAPs 50 and 51 are Read/Write/Alarm Ack access point for class 1 connection.

Class 1 Master is a device which cyclic data-exchange with DP-Slave.

SAP 51 generally serve as Read/Write and Alarm Acknowledge, and SAP 50 optionally serve as Alarm Acknowledge for accelerate the reaction-time of Read/Write service. In case of frequent read/write service, alarm acknowledge must be independent from read/write service; In case of infrequent read/write, alarm acknowledge can shared SAP 51 with Read/Write.

DP-V1 slave provide a unique acyclic service entry SAP 49, this SAP

called Resource Manager. Resource Manager play the role of coordinator, it coordinate multiple remote connection at one time. Before acyclic data-exchange, class 2 master send an initiate request to SAP49, then resource manager search for an available SAP(48~0) to response these information to Class 2 Master. After Class 2 Master receives initiate response, it applies the new SAP to request information you want. In contract to C1 Master, C2-Master supports Data-Transport service for read & write at one cycle. If DP-V1 services were no more need, Class 2 Master sent the Abort request to terminate the connection. During the connection, DP-Slave start watchdog timer to monitor the C2 DP-V1 telegram (C2-Init, C2-Abort, C2-Write, C2-Read, C2-DataTransport, C2-IDLE). If watchdog timer didn’t clear by C2-IDLE, DP-slave will terminate this connection automatically.

The Information in DP-V1 is addressing by Slot and Index, Length is used

to indicate the read/write length. Length in Write must be match with specification in DP-Slave, otherwise it will return “Invalid length”. The information addressing use non-exist slot or index, it will return “Invalid slot” or “Invalid Index”, for details, please refer to DP-Extension Specification.

DP-V1 services supported by PROFI-8155/8255 are Read and Write

service, Alarm_Ack and Data_Transport didn’t supported. List shown below is the Service-Index mapping table.


Slot ID Index ID R/W Feature

Addressing Information

0 0 R Device Identifier 1 R Device Name 2 R Device Firmware Version 3 R Common Parameter(Byte Order) 4 R The Number of Installed Module 1~2 1 R Module Name 2 R(i-87K) Module Firmware Version 3 R I/OType 4 R Input Data Length 5 R Output Data Length 6 R Data Format 7 R Operation Mode(Type-Code) 8~15 N/A Reserved 16 R Input Data of All Channel 17 R Input Data of Status

(CJC’s Temp.,DI’s Count) 18 R Output Data of All Channel 19 R Output Data of Control

(DI w/ Cnt Clear, CJC Compens., i-87082,i-8080 Clear Command)

20~31 N/A Reserved 32 R Digital Input or

Analog Input of Channel 0 33~63 R Analog Input of Channel 1 ~ 31 64 R Digital Ouput or

Analog Output of Channel 0 65~95 R Analog Output of Channel 1 ~ 31 96 R(i-87K) Digital Safe-Value

Analog Safe-Value of Channel 0 97~127 R(i-87K) Analog Safe-Value of Channel

1~31 128 R/W(i-87K) Digital Power-On Value

Analog Power-On Value of Channel 0

129~159 R/W(i-87K) Analog Power-On Value of Channel 1~31

128~133 0~255 R/W Read/Write EEPROM(Block 0~5) 134~135 0~255 R Read EEPROM (Block 6~7)

Slot 0 represent the main control unit of PROFI-8155/8255, Slot 1~2

represent the I/O module in expansion slots. If user access the Slot that


module not support or not installed, the PROFI-8155/8255 report “Invalid Slot” to user.

Device identifier is the series-number that device register to PNO, it is

unique and only available on PROFI-8155/8255. Device name is PROFI-8155 if the device has one expansion slot, and

device name is PROFI-8255 if the device has two expansion slots. Device firmware version is 1.00 at release, and 1.01, 1.02, etc. at

revision. Following information are only available in Slot 1/2. Module Name is the

format of 870xx or 80xx. Module firmware version is only available in i-87K Module. The firmware version is the format of Ax.xx or Bx.xx.

I/O type classified i-8K and i-87K module into 5 categories, shown below

I/O Type Digital Inp. Digital Outp. Analog Inp. Analog Outp. Cnt&FreqType ID 1 2 4 8 16

Input/Output Data Length is the length of memory space allocated to

expansion modules. It excludes the length of the fields of CJC Read/Write and i-87K DI Clear command.

Data format totally classified into 4 categories, they are Engineering-Units,

Percentage of Full Scale, Hexadecimal format, Ohm Unit(RTD, Thermister only). Details described follow

Data Format Engineering(0) % of F.S.(1) Hex(2) Ohm(3)

i-8K i-87K

Note: represent supported. The operation mode of i-87K modules that called type code in website

refers to ICP DAS’s Product website. For i-8K modules, the operation mode show below


i-8024 Operation Mode Operation Mode 0 1 2 Operation Range ±10V 0~20mA 0~20000uA

(Engineer only)

i-8017H(S) Operation Mode Operation Mode 0 1 2 3 4 Operation Range ±10V ±5V ±2.5V ±1.25V ±20mA

i-8080 Operation Mode

Operation Mode 0 1 2 3 Operation Type Dir/Pulse

(4Ch) Up/Down (4Ch)

Frequency (8Ch)

Up (8Ch)

Index large than 32 was used to indexing general-purpose I/O related

information. Any Class 2 DP-Master can access the I/O data using these indices by MSAC2 telegram. Beside the Power-On Value, all the others were read only.

Index from 32 to 63 mapped the Input data from the corresponding

module to the DP-V1 buffer. Data Address and Byte Order obey the DP-V0 setting, beside the special status signal.

i-87018(R/W/Z) as well as i-87019R both provide the function of CJC

temperature reading. In order to indexing this information, the index of CJC temperature is 40 in i-87018-series module, and the index is 42 in i-87019R module.

i-87K digital input modules contain a low-frequency(100Hz) counter for

each channel. For access these counter, user just accesses the index that equal to 32 plus desired channel number.

Index from 64 to 95 mapped the output data from the corresponding

module to the DP-V1 buffer. Data Address and Byte Order obey the DP-V0 setting, beside the special control signal.

“Counter Clear” is an output for i-8080, this information can access by

Index 64. “Counter Start/Stop/Clear” as well as “2 Bit’s Digital Output” were combine into one byte in 87082(W), this information can access by Index 64. i-87K Digital Input Module with Counter functionality also have “Counter Clear”


command that access by index 64(Pure Input Module) or index 65(Input/Output module). i-87K module that support thermocouple Input provide CJC temperature calibration that can be access by Index 64.

Safe Value of i-87K output module only support DP-V1 read service. Write

service is forbiddance, because of safe-value setting of parameter data. The safe-value of analog module or digital module can be access by index 96 to index 127. Notice that i-87082(W) 2 bits’ output not supported safe-value output.

Power-On Value is a mechanism that prevents non-regular operation that

DP-Slave just Power-On and not in Data-Exchange procedure. Power-On Value valid for the interval of Data-Exchange before and Power-On after. This information can be access by index 128~160.

Slot from 128 to 137 is used for access the EEPROM of PROFI-8155/

8255. There is 2 kilo-byte memory space, 256 byte reserved for OS, 256 byte used to store PROFI-8x55 setting, the remainder 1.5Kbyte can be read/write by user. The upper 512Byte mentioned above only supported DP-V1 read service. The maximum length of each accessing limit to 64 byte, and read service can cross different block, but write service can’t.


3.8. Establish connection with PROFI-8X55 Before establish the connection between DP-Master and PROFI-8x55, user should conform to the following step first.

First, users must load the electronic device description file (GSD file) of

the PROFI-8x55 into the DP-Master, and then set the parameters of the modules plugged in PROFI-8x55 respectively. Finally change your DP-master from Offline state to Operate state. While DP-Master changes to operate mode, PROFI-8x55 will initial the modules. Then PROFI-8x55 allocates the memory space and waits for Set_Prm telegram. The next stage is waiting for Chk_Cfg telegram in order. If there is no error occurs, PROFI-8x55 proceeds into data exchange state. Users can observe the status indicator LED to know the state of PROFI-8x55. At the meantime, if there is any error occurs, PROFI-8x55 will return to wait parameterization.


3.9. Telegram cycle of data exchange If you want to know the round-trip time of a data exchange telegram, you must know how a byte enveloped into a serial stream. In series communication, the byte transmission includes start bit, stop bit, data field and optional parity. According to the PROFIBUS specification, there is no parity bit in transmission. Therefore, one data byte will be encoded to 11 bits. Consequently, the telegram cycle time of data exchange will calculate as follow.

T = (Output data Bit Time (header include) + Station Reaction Bit Time + Input Data Bit Time (header include) + Bus Idle Bit Time + Sync-Bit Time) * Transmission Time per Bit. Output Data Bit Time (header include) = (9 + length of output data in Byte) * 11 Station Reaction Time = Any Value that large than Min.Tsdr and smaller than Max.Tsdr There is look up table between Baud Rate and Max.Tsdr. (This information is in GSD file)

Baud Rate(in bit per second) Max.Tsdr (in Tbit) 9600 60

19,200 60 454,500 60 937,500 60 187,500 60 500,000 100

1,500,000 150 3,000,000 250 6,000,000 450

12,000,000 800 Input Data Bit Time (header include) = (9 + length of input data in Byte) * 11 Bus Idle Time = max (TSYN + TSM , min TSDR , TSDI)


For details, please refer to PROFIBUS Specification. Sync. Bit Time = 33 (constant) Transmission Time per Bit = the inverse of Baud Rate. For example:

The data transmission time with 15 bytes output data and 30 bytes input data in 12Mbps is calculated as follows.

Parameter： TSYN=33 Tbits

TID1=75 Tbits (1.5M BR) TSDR=30 Tbits (1.5M BR) Min_Slave_Interval = 1 The time is as follows. T = ( (9+15) * 11 + 30 + (9+30) * 11 + 33 + 75 ) / 12*106 = 69.25uS


4. PROFI-8X55 Guideline (Based on Step 7)

In this chapter, we make a demo with PROFI-8X55 and the DP-Master of Siemens S7-300. The demo is shown how to apply the PROFI-8X55 in a realistic system.

4.1. Preprocessing

1. Insert New Object->PROFIBUS:

2. Enter Hardware Configuration: Double-Click SIMATIC 300 Station->Hardware


3. Add DP-Master to PROFIBUS network: Right-Click “DP”, Select “ Add Master System” and Modify Network Parameter.

4. Add GSD into Step7: Select “Options”->”Install GSD file”, then located & Install GSD file.


5. Add Module into PROFI-8155/8255: 1. Add module(s): Add the module(s) you want to use. In this example, we choose i-8017H and i-8024.

2. Modify parameter data： Click <Parameter Data> button in right-up corner of the windows, and modify the “Common” and “Module” parameter by your preference. In this example, we use default setting.


6. Download the network configuration to DP-Master： Click “PLC” -> ”Download” to download the network setting into S7-300. 7. Install Module(s):

In this example, we plug i-8017H and i-8024 into expansion slot in PROFI-8X55 in order.

8. Adjust the rotary switches: In previous step, we modify the address of DP-Slave to “1”, so we must adjust the rotary switches to 01 on the panel of PROFI-8x55.

9. Power supplied：

Plug the power terminator with 24VDC to PROFI-8X55.


5. GSD File

A GSD is a readable ASCII text file and contains both general and device-specific specifications for communication. Each of the entries describes a feature that is supported by a device. A GSD replaces the previously conventional manuals an supports automatic checks for input errors and data consistency, even during the configuration phase. PROFI-8X55 GSD file is located at ICPDAS Product CD and the following web site ftp://ftp.icpdas.com.tw/pub/cd/fieldbus_cd/profibus/remote%20io/profi-8155/gsd/

ftp://ftp.icpdas.com.tw/pub/cd/fieldbus_cd/profibus/remote%20io/profi-8155/gsd/

ftp://ftp.icpdas.com.tw/pub/cd/fieldbus_cd/profibus/remote%20io/profi-8155/gsd/

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